/*
 Lightbox for Bootstrap 3 by @ashleydw
 https://github.com/ashleydw/lightbox

 License: https://github.com/ashleydw/lightbox/blob/master/LICENSE
 */


(function() {
    "use strict";
    var $, EkkoLightbox;

    $ = jQuery;

    EkkoLightbox = function(element, options) {
        var content, footer, header,
            _this = this;
        this.options = $.extend({
            title: null,
            footer: null,
            remote: null
        }, $.fn.ekkoLightbox.defaults, options || {});
        this.$element = $(element);
        content = '';
        this.modal_id = this.options.modal_id ? this.options.modal_id : 'ekkoLightbox-' + Math.floor((Math.random() * 1000) + 1);
        header = '<div class="modal-header"' + (this.options.title || this.options.always_show_close ? '' : ' style="display:none"') + '><button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button><h4 class="modal-title">' + (this.options.title || "&nbsp;") + '</h4></div>';
        footer = '<div class="modal-footer"' + (this.options.footer ? '' : ' style="display:none"') + '>' + this.options.footer + '</div>';
        $(document.body).append('<div id="' + this.modal_id + '" class="ekko-lightbox modal fade" tabindex="-1"><div class="modal-dialog"><div class="modal-content">' + header + '<div class="modal-body"><div class="ekko-lightbox-container"><div></div></div></div>' + footer + '</div></div></div>');
        this.modal = $('#' + this.modal_id);
        this.modal_dialog = this.modal.find('.modal-dialog').first();
        this.modal_content = this.modal.find('.modal-content').first();
        this.modal_body = this.modal.find('.modal-body').first();
        this.lightbox_container = this.modal_body.find('.ekko-lightbox-container').first();
        this.lightbox_body = this.lightbox_container.find('> div:first-child').first();
        this.showLoading();
        this.modal_arrows = null;
        this.border = {
            top: parseFloat(this.modal_dialog.css('border-top-width')) + parseFloat(this.modal_content.css('border-top-width')) + parseFloat(this.modal_body.css('border-top-width')),
            right: parseFloat(this.modal_dialog.css('border-right-width')) + parseFloat(this.modal_content.css('border-right-width')) + parseFloat(this.modal_body.css('border-right-width')),
            bottom: parseFloat(this.modal_dialog.css('border-bottom-width')) + parseFloat(this.modal_content.css('border-bottom-width')) + parseFloat(this.modal_body.css('border-bottom-width')),
            left: parseFloat(this.modal_dialog.css('border-left-width')) + parseFloat(this.modal_content.css('border-left-width')) + parseFloat(this.modal_body.css('border-left-width'))
        };
        this.padding = {
            top: parseFloat(this.modal_dialog.css('padding-top')) + parseFloat(this.modal_content.css('padding-top')) + parseFloat(this.modal_body.css('padding-top')),
            right: parseFloat(this.modal_dialog.css('padding-right')) + parseFloat(this.modal_content.css('padding-right')) + parseFloat(this.modal_body.css('padding-right')),
            bottom: parseFloat(this.modal_dialog.css('padding-bottom')) + parseFloat(this.modal_content.css('padding-bottom')) + parseFloat(this.modal_body.css('padding-bottom')),
            left: parseFloat(this.modal_dialog.css('padding-left')) + parseFloat(this.modal_content.css('padding-left')) + parseFloat(this.modal_body.css('padding-left'))
        };
        this.modal.on('show.bs.modal', this.options.onShow.bind(this)).on('shown.bs.modal', function() {
            _this.modal_shown();
            return _this.options.onShown.call(_this);
        }).on('hide.bs.modal', this.options.onHide.bind(this)).on('hidden.bs.modal', function() {
            if (_this.gallery) {
                $(document).off('keydown.ekkoLightbox');
            }
            _this.modal.remove();
            return _this.options.onHidden.call(_this);
        }).modal('show', options);
        return this.modal;
    };

    EkkoLightbox.prototype = {
        modal_shown: function() {
            var video_id,
                _this = this;
            if (!this.options.remote) {
                return this.error('No remote target given');
            } else {
                this.gallery = this.$element.data('gallery');
                if (this.gallery) {
                    if (this.options.gallery_parent_selector === 'document.body' || this.options.gallery_parent_selector === '') {
                        this.gallery_items = $(document.body).find('*[data-toggle="lightbox"][data-gallery="' + this.gallery + '"]');
                    } else {
                        this.gallery_items = this.$element.parents(this.options.gallery_parent_selector).first().find('*[data-toggle="lightbox"][data-gallery="' + this.gallery + '"]');
                    }
                    this.gallery_index = this.gallery_items.index(this.$element);
                    $(document).on('keydown.ekkoLightbox', this.navigate.bind(this));
                    if (this.options.directional_arrows && this.gallery_items.length > 1) {
                        this.lightbox_container.append('<div class="ekko-lightbox-nav-overlay"><a href="#" class="' + this.strip_stops(this.options.left_arrow_class) + '"></a><a href="#" class="' + this.strip_stops(this.options.right_arrow_class) + '"></a></div>');
                        this.modal_arrows = this.lightbox_container.find('div.ekko-lightbox-nav-overlay').first();
                        this.lightbox_container.find('a' + this.strip_spaces(this.options.left_arrow_class)).on('click', function(event) {
                            event.preventDefault();
                            return _this.navigate_left();
                        });
                        this.lightbox_container.find('a' + this.strip_spaces(this.options.right_arrow_class)).on('click', function(event) {
                            event.preventDefault();
                            return _this.navigate_right();
                        });
                    }
                }
                if (this.options.type) {
                    if (this.options.type === 'image') {
                        return this.preloadImage(this.options.remote, true);
                    } else if (this.options.type === 'youtube' && (video_id = this.getYoutubeId(this.options.remote))) {
                        return this.showYoutubeVideo(video_id);
                    } else if (this.options.type === 'vimeo') {
                        return this.showVimeoVideo(this.options.remote);
                    } else if (this.options.type === 'instagram') {
                        return this.showInstagramVideo(this.options.remote);
                    } else if (this.options.type === 'url') {
                        return this.loadRemoteContent(this.options.remote);
                    } else if (this.options.type === 'video') {
                        return this.showVideoIframe(this.options.remote);
                    } else {
                        return this.error("Could not detect remote target type. Force the type using data-type=\"image|youtube|vimeo|instagram|url|video\"");
                    }
                } else {
                    return this.detectRemoteType(this.options.remote);
                }
            }
        },
        strip_stops: function(str) {
            return str.replace(/\./g, '');
        },
        strip_spaces: function(str) {
            return str.replace(/\s/g, '');
        },
        isImage: function(str) {
            return str.match(/(^data:image\/.*,)|(\.(jp(e|g|eg)|gif|png|bmp|webp|svg)((\?|#).*)?$)/i);
        },
        isSwf: function(str) {
            return str.match(/\.(swf)((\?|#).*)?$/i);
        },
        getYoutubeId: function(str) {
            var match;
            match = str.match(/^.*(youtu.be\/|v\/|u\/\w\/|embed\/|watch\?v=|\&v=)([^#\&\?]*).*/);
            if (match && match[2].length === 11) {
                return match[2];
            } else {
                return false;
            }
        },
        getVimeoId: function(str) {
            if (str.indexOf('vimeo') > 0) {
                return str;
            } else {
                return false;
            }
        },
        getInstagramId: function(str) {
            if (str.indexOf('instagram') > 0) {
                return str;
            } else {
                return false;
            }
        },
        navigate: function(event) {
            event = event || window.event;
            if (event.keyCode === 39 || event.keyCode === 37) {
                if (event.keyCode === 39) {
                    return this.navigate_right();
                } else if (event.keyCode === 37) {
                    return this.navigate_left();
                }
            }
        },
        navigateTo: function(index) {
            var next, src;
            if (index < 0 || index > this.gallery_items.length - 1) {
                return this;
            }
            this.showLoading();
            this.gallery_index = index;
            this.$element = $(this.gallery_items.get(this.gallery_index));
            this.updateTitleAndFooter();
            src = this.$element.attr('data-remote') || this.$element.attr('href');
            this.detectRemoteType(src, this.$element.attr('data-type') || false);
            if (this.gallery_index + 1 < this.gallery_items.length) {
                next = $(this.gallery_items.get(this.gallery_index + 1), false);
                src = next.attr('data-remote') || next.attr('href');
                if (next.attr('data-type') === 'image' || this.isImage(src)) {
                    return this.preloadImage(src, false);
                }
            }
        },
        navigate_left: function() {
            if (this.gallery_items.length === 1) {
                return;
            }
            if (this.gallery_index === 0) {
                this.gallery_index = this.gallery_items.length - 1;
            } else {
                this.gallery_index--;
            }
            this.options.onNavigate.call(this, 'left', this.gallery_index);
            return this.navigateTo(this.gallery_index);
        },
        navigate_right: function() {
            if (this.gallery_items.length === 1) {
                return;
            }
            if (this.gallery_index === this.gallery_items.length - 1) {
                this.gallery_index = 0;
            } else {
                this.gallery_index++;
            }
            this.options.onNavigate.call(this, 'right', this.gallery_index);
            return this.navigateTo(this.gallery_index);
        },
        detectRemoteType: function(src, type) {
            var video_id;
            type = type || false;
            if (type === 'image' || this.isImage(src)) {
                this.options.type = 'image';
                return this.preloadImage(src, true);
            } else if (type === 'youtube' || (video_id = this.getYoutubeId(src))) {
                this.options.type = 'youtube';
                return this.showYoutubeVideo(video_id);
            } else if (type === 'vimeo' || (video_id = this.getVimeoId(src))) {
                this.options.type = 'vimeo';
                return this.showVimeoVideo(video_id);
            } else if (type === 'instagram' || (video_id = this.getInstagramId(src))) {
                this.options.type = 'instagram';
                return this.showInstagramVideo(video_id);
            } else if (type === 'video') {
                this.options.type = 'video';
                return this.showVideoIframe(video_id);
            } else {
                this.options.type = 'url';
                return this.loadRemoteContent(src);
            }
        },
        updateTitleAndFooter: function() {
            var caption, footer, header, title;
            header = this.modal_content.find('.modal-header');
            footer = this.modal_content.find('.modal-footer');
            title = this.$element.data('title') || "";
            caption = this.$element.data('footer') || "";
            if (title || this.options.always_show_close) {
                header.css('display', '').find('.modal-title').html(title || "&nbsp;");
            } else {
                header.css('display', 'none');
            }
            if (caption) {
                footer.css('display', '').html(caption);
            } else {
                footer.css('display', 'none');
            }
            return this;
        },
        showLoading: function() {
            this.lightbox_body.html('<div class="modal-loading">' + this.options.loadingMessage + '</div>');
            return this;
        },
        showYoutubeVideo: function(id) {
            var height, width;
            width = this.checkDimensions(this.$element.data('width') || 560);
            height = width / (560 / 315);
            return this.showVideoIframe('//www.youtube.com/embed/' + id + '?badge=0&autoplay=1&html5=1', width, height);
        },
        showVimeoVideo: function(id) {
            var height, width;
            width = this.checkDimensions(this.$element.data('width') || 560);
            height = width / (500 / 281);
            return this.showVideoIframe(id + '?autoplay=1', width, height);
        },
        showInstagramVideo: function(id) {
            var height, width;
            width = this.checkDimensions(this.$element.data('width') || 612);
            this.resize(width);
            height = width + 80;
            this.lightbox_body.html('<iframe width="' + width + '" height="' + height + '" src="' + this.addTrailingSlash(id) + 'embed/" frameborder="0" allowfullscreen></iframe>');
            this.options.onContentLoaded.call(this);
            if (this.modal_arrows) {
                return this.modal_arrows.css('display', 'none');
            }
        },
        showVideoIframe: function(url, width, height) {
            height = height || width;
            this.resize(width);
            this.lightbox_body.html('<div class="embed-responsive embed-responsive-16by9"><iframe width="' + width + '" height="' + height + '" src="' + url + '" frameborder="0" allowfullscreenclass="embed-responsive-item"></iframe></div>');
            this.options.onContentLoaded.call(this);
            if (this.modal_arrows) {
                this.modal_arrows.css('display', 'none');
            }
            return this;
        },
        loadRemoteContent: function(url) {
            var disableExternalCheck, width,
                _this = this;
            width = this.$element.data('width') || 560;
            this.resize(width);
            disableExternalCheck = this.$element.data('disableExternalCheck') || false;
            if (!disableExternalCheck && !this.isExternal(url)) {
                this.lightbox_body.load(url, $.proxy(function() {
                    return _this.$element.trigger('loaded.bs.modal');
                }));
            } else {
                this.lightbox_body.html('<iframe width="' + width + '" height="' + width + '" src="' + url + '" frameborder="0" allowfullscreen></iframe>');
                this.options.onContentLoaded.call(this);
            }
            if (this.modal_arrows) {
                this.modal_arrows.css('display', 'none');
            }
            return this;
        },
        isExternal: function(url) {
            var match;
            match = url.match(/^([^:\/?#]+:)?(?:\/\/([^\/?#]*))?([^?#]+)?(\?[^#]*)?(#.*)?/);
            if (typeof match[1] === "string" && match[1].length > 0 && match[1].toLowerCase() !== location.protocol) {
                return true;
            }
            if (typeof match[2] === "string" && match[2].length > 0 && match[2].replace(new RegExp(":(" + {
                        "http:": 80,
                        "https:": 443
                    }[location.protocol] + ")?$"), "") !== location.host) {
                return true;
            }
            return false;
        },
        error: function(message) {
            this.lightbox_body.html(message);
            return this;
        },
        preloadImage: function(src, onLoadShowImage) {
            var img,
                _this = this;
            img = new Image();
            if ((onLoadShowImage == null) || onLoadShowImage === true) {
                img.onload = function() {
                    var image;
                    image = $('<img />');
                    image.attr('src', img.src);
                    image.addClass('img-responsive');
                    _this.lightbox_body.html(image);
                    if (_this.modal_arrows) {
                        _this.modal_arrows.css('display', 'block');
                    }
                    _this.resize(img.width);
                    return _this.options.onContentLoaded.call(_this);
                };
                img.onerror = function() {
                    return _this.error('Failed to load image: ' + src);
                };
            }
            img.src = src;
            return img;
        },
        resize: function(width) {
            var width_total;
            width_total = width + this.border.left + this.padding.left + this.padding.right + this.border.right;
            this.modal_dialog.css('width', 'auto').css('max-width', width_total);
            this.lightbox_container.find('a').css('line-height', function() {
                return $(this).parent().height() + 'px';
            });
            return this;
        },
        checkDimensions: function(width) {
            var body_width, width_total;
            width_total = width + this.border.left + this.padding.left + this.padding.right + this.border.right;
            body_width = document.body.clientWidth;
            if (width_total > body_width) {
                width = this.modal_body.width();
            }
            return width;
        },
        close: function() {
            return this.modal.modal('hide');
        },
        addTrailingSlash: function(url) {
            if (url.substr(-1) !== '/') {
                url += '/';
            }
            return url;
        }
    };

    $.fn.ekkoLightbox = function(options) {
        return this.each(function() {
            var $this;
            $this = $(this);
            options = $.extend({
                remote: $this.attr('data-remote') || $this.attr('href'),
                gallery_parent_selector: $this.attr('data-parent'),
                type: $this.attr('data-type')
            }, options, $this.data());
            new EkkoLightbox(this, options);
            return this;
        });
    };

    $.fn.ekkoLightbox.defaults = {
        gallery_parent_selector: 'document.body',
        left_arrow_class: '.glyphicon .glyphicon-chevron-left',
        right_arrow_class: '.glyphicon .glyphicon-chevron-right',
        directional_arrows: true,
        type: null,
        always_show_close: true,
        loadingMessage: 'Loading...',
        onShow: function() {},
        onShown: function() {},
        onHide: function() {},
        onHidden: function() {},
        onNavigate: function() {},
        onContentLoaded: function() {}
    };

}).call(this);